Invention Grant
- Patent Title: White lead pigment and process of making same
- Patent Title (中): 白色铅颜料及其制作方法
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Application No.: US23331327Application Date: 1927-11-14
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Publication No.: US1847358APublication Date: 1932-03-01
- Inventor: NEWNAM WILLIAM E , JEAN MCCALLUM
- Applicant: NAT LEAD CO
- Assignee: Nat Lead Co
- Current Assignee: Nat Lead Co
- Priority: US23331327 1927-11-14
- Main IPC: C09C1/16
- IPC: C09C1/16
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