United States Patent RE27662
Publication Date:
06/12/1973
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Primary Class:
Other Classes:
148/259, 216/102, 216/108, 252/79.100
International Classes:
C23C22/47; C23G1/08; C23G1/12; C25D11/36; C23C22/05; C23G1/02; C25D11/00