B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
149/9
B24B 1/00 (2006.01) B24B 7/22 (2006.01)
Patent
CA 1128842
Abstract of the Disclosure Quartz plates are treated to produce a chemically polished quartz crystal surface by lapping the quartz plate with an abrasive and then etching the lapped quartz plate in a fluoride type etchant so that the damage pro- duced by lapping is removed.
321713
Lebus John W.
Vig John R.
Aspila Kalevi P.
United States (government Of The) As Represented By The Secretar
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