Document YGD2gmJ95n87J1vJzkggxEjZK

jiv~ 'mo. me corporation Foster <i Laughtisi Stsal Corp./ 4<>"'>* hkoUger s Company. .1964 Pittsburgh Activated Cost Company :;i9> Pittsburgh PUts Claes Company 19*5 - Pittsburgh Stool Company ' f'.ffif&ftvfy ' '!1938 ." Portland Cement Association *** Refractories Dielrlnn'y^ * *4 s--u--s-v>A<-J--a--m` l-nu-a at.i ^Ckh_ae.m._.^a'CV^ar^*. .****'*!'&'4. .961 - Powdered Products Company 'Process Air Oivition 'American Air Filter Company Pullman-Standard &f~\' .1911 #.'Vi*4- , JRoactioa Motors Division Thlohol Chemical Corporation >03t $*'<* 'fcsad'.|bmi.'itos,AssoclsttooT;M:'J!^'. . . \f]474A;'..;' Rad HiU Grinding Wheel Corp. T nodnn ZMoapott.Board'?$jisi:~'.. :. MdS'.r;Republic Steel Corporation !!" <3rdnancs;Plani''W-Wj.' 1 U Jtoborts_o__nssCe_o__m__p_a_n__y ft?: . * bo>Ramt<Dtulaiem^JlJ^jlJ.'. ',!$*.' .Jtobcifaoa Manufacturing Company - - .4,039^ Safety Pirst Supply Company r*a.,v iUc3d<^py'.^^^ ,. \i9J9'lV`:',t' St, Jostpb 'toad Company MenAsH^RubWrOiVlaiaa-T?!^; a, ''''''' -:iMO.'i?.YSandU Corpotation RayWotaaMasAwiao,,Ie^fe"*: ,1956'V v'Sausisisan Cements Company imn** Maryland Bell-Menmet' anf-^'.V ' . HOJ.Tx'.^Cfouds B* Schnslbls Company wi ^ * Canploywvo' Compodsatioa A astH.. 1 '" `Scott' Aviation Corporotioit... is S.McCormick Company ' I.65T<., ;i Slraonds Abrasive Company' .' vf- ionS' . 1*4 Morck * Cosine,- ' V .^'WT.'.' /^ilmonds Worden White Company , MidWeet`Abcaei*o-Coatpaay>'>>^'lS ' . 'vi^Sb-!' '1 .Soap and Detergent Association K"5' o>k 'Mina Sa/aryAppttaocoe Company: '.-' * ' !040r 1 Sonony Mobil Oil Company, lac. Minnasots-Mining 6 Manulartoring Co. I941..L' Maadard time and Cement Company 1456 'Jjr- 1046 Jo eee S. Moris h Son,; low. Vv <&*'. ...:* mAfV'.', Hotlonol AponsrteUoitoiMrjwai&fe^;''' . CsmualtyCosupaitteo^AOj^'gi^j' " HM> Styndaid Oil Company (New Jersvy) 196i: '> .*taurto Chemical Company w"(^SfitcaitLlm!ng GCHftinAd^lihliga WW^hiheaiIl CCoovme pany 190 .'"SUNioc Industrial Lubricants Co. ,C\ '. 10*9 . Motional Croabed SlonwAssniVlnc. _ 1955 '".''Sugar Boat Products Company 1W Niitoaol Clnee Sand.Corporatism-/!! > |s, ,J *s V * " ' 1011 Hatianai Grinding Wheel Co,!inn. ' 10*3 .:'Tkia industries Limited J 10JT I0*t .fipT , I960 National Industrial SouW'lhdMtkiC'. NaUansd Load Ccpo*p,?ji!:iV National- lUadyMined Coocreta-Assn- I046vu.;'-' Taytor, Smith It Taylor Company . V946'.vrT*un*s*** Coppsr Company Divtilon at Tennessee Corp. ''I 1046 National Sand and Graval AanauVlot. 10M-.VivTeak* Cult Sulphur Company ?. ioi National Stag Asenriiaitoo. 10S9 ' .v Titan Aheatlve s Company V loo?; National Suol Carporatio.'^>SU.'^f,. I960- Toms tUvor-CInemnati Chemical V ' >964- Nedetlaod duPont deNeoioutjifNaiVV. <;.?; Corporation t 1064 Newport Division . Meydoa Newport ChcmVcal Corp, ' 1936.. .UnionCarbide Corporation * ' ,P *[* * 4 1063 1 ' Osborn Usaulseturiitg Company 1.936? '..'.United Stales'Poners Association Dll^ '.^sltSd States Steel Corporation 10*1 ` Ottawa SUioa Company .' _ 106* ' OwenssCoralac Flberglae 'Cofp*< ' 1931 .? .Valley Mould and Iron Cospuraiiun 10*6 , Owns>nUnais. Class Company/ ' t' 19601.. ,,Van Strssisn Chamicsl Company 1938'. V Vesuvius Crucible Company Ti . I04 Psecittn Grinding Wheel Manufacturing - >064 ', Q, H. Paekesood Manufacturing Co. 1031 Waltham Grinding Wheel Company * ion Peouioular Grindiag Wheel Dlyiotaa ' 1931 Washington Mills Abrasive Company WoheDold Corporation 1931 Wedron Silica Company I03T penneylvaalaGlass Sand Corps- 1964 Western Electric Company. Int. 141b PsMiyNuU Maculactursrs' Assn. 1039' WetUieid Grinding Whvl Company " ' Casualty larurancs Company 1061 Wssunghoueu Brslft: ami Signal . I4b4 1940 191b 1941 PsrkufElmor. Corporation Petroleo BtaslUiro t A. Phelps Dodge Corporation Philadelphia Quart1 Company *t 1037 .1031 193T Company, Limited Wiretinghouee Elociric Corporation Whitehead Bturners Company Willson Proiiucit Division Ray0*Vac Company Mempir MrmoaraMp (IT (oembsr companies) J 1931 Voungstoem Sheet *nd Tube Company