Lap blank for use in optical lens making

Details Lap blank for use in optical lens making Lap blank for use in optical lens making

1988-10-21

1991-09-24

Dunkins, Bruce W.

Machines not elsewhere specified

Material working, abrading, or founding machinery

Abrading

D 6449, D 6495, D15140

Patent

active

D03202135

REFERENCES:
patent: D84552 (1931-06-01), Siegel
patent: D156439 (1949-12-01), Lebensfeld
patent: D279801 (1985-07-01), Brockenshire
patent: D300489 (1989-04-01), Antonellis
patent: 371457 (1887-10-01), Hersh
patent: 2699633 (1955-01-01), Lapenas et al.
patent: 2715509 (1955-08-01), Paige
patent: 3618271 (1971-11-01), Martiros
patent: 3906834 (1975-09-01), Gladwin
patent: 4239567 (1980-12-01), Wininas
patent: 4739546 (1988-04-01), Tachibana et al.

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