Method and apparatus for treating sheet metal to remove impurities and achieve uniform hardness
DE319766CInactive Publication Date: 1920-03-16ELECTRO-METALLSCHWEISSEREI GMBH
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Patent Information
- Application Number
- DE319766DD
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Publication Date
- 1920-03-16
- Estimated Expiration
- Not applicable · inactive patent
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