(19)
(11) EP 0 103 638 A1

(12)

(43) Date of publication:
28.03.1984 Bulletin 1984/13

(21) Application number: 83901463.0

(22) Date of filing: 15.03.1983
(51) International Patent Classification (IPC): 
C25D 3/ 30( . )
C25D 3/ 56( . )
H05K 3/ 34( . )
 C25D 3/ 34( . )
C25D 3/ 60( . )
(86) International application number:
PCT/US1983/000348
(87) International publication number:
WO 1983/003266 (29.09.1983 Gazette 1983/23)
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 15.03.1982 US 19820357907

(71) Applicant: GSP METALS & CHEMICALS CORPORATION
Los Angeles CA 90058 (US)

(72) Inventors:
  • DRAZIN, Shepard
    Los Angeles, CA 90035 (US)
  • VAN ANTWERP, William Peter
    Pacific Palisades, CA 90272 (US)

   


(54) CHELATING METALS