Invention Grant
- Patent Title: Polyethylene balloon
- Patent Title (中): 聚乙烯气球
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Application No.: US11243061Application Date: 1961-05-24
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Publication No.: US3149017APublication Date: 1964-09-15
- Inventor: EHRREICH JOHN E , FAZIO CHARLES P , NICKERSON BEVERLY A
- Applicant: GRACE W R & CO
- Assignee: W R Grace and Co
- Current Assignee: W R Grace and Co
- Priority: US11243061 1961-05-24
- Main IPC: B29C49/00
- IPC: B29C49/00 ; B29C71/04
Public/Granted literature
- US07918751B1 Method of rating golf balls Public/Granted day:2011-04-05
Information query
