The present application is a divisional application of Serial No. 657,740, filed February 13, 1976, now pending issuance as a United States Patent.
Entry |
---|
derwent Abstract, 47234-B, DT 2305044-Q, (09/08/73). |
Derwent Abstract, 18176Y/11, BE 846-080, (10/03/77). |
Derwent Abstract, 61891X/33, DT 2603-172, (05/08/76). |
Derwent Abstract, 59715X/32, BE 839-533, (01/07/76). |
Derwent Abstract, 79219X/42, U.S. 3984,400, (05/10/76). |
Number | Date | Country | |
---|---|---|---|
Parent | 657740 | Feb 1976 |