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公开(公告)号：US1373724A
公开(公告)日：1921-04-05
申请号：US21222918
申请日：1918-01-17
Applicant: MUELLER METALS COMPANY
Inventor： HEIBY CARL G , JOHN BURKAM , LINDQUIST DAVID E , RIGGIN FRED L , ALLEN EBENEZER W , RICHARD LAU
IPC: B21K21/00
CPC classification number: B21K21/00 , Y10T29/49799 , Y10T428/12264
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公开(公告)号：US1331920A
公开(公告)日：1920-02-24
申请号：US21222418
申请日：1918-01-17
Applicant: MUELLER METALS COMPANY
Inventor： HEIBY CARL G , JOHN BURKAM , LINDQUIST DAVID E , RIGGIN FRED L , ALLEN EBENEZER W , RICHARD LAU
IPC: B22C9/06
CPC classification number: B22C9/06
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公开(公告)号：US1373726A
公开(公告)日：1921-04-05
申请号：US21223318
申请日：1918-01-17
Applicant: MUELLER METALS COMPANY
Inventor： HEIBY CARL G , HILL CHARLES A , LINDQUIST DAVID E
CPC classification number: B21J13/02 , B21J5/022 , Y10T29/49975 , Y10T29/49979
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Patent Agency Ranking
公开(公告)号：US1379983A
公开(公告)日：1921-05-31
申请号：US21222718
申请日：1918-01-17
Applicant: MUELLER METALS COMPANY
Inventor： HEIBY CARL G , JOHN BURKAM , LINDQUIST DAVID E , RIGGIN FRED L , ALLEN EBENEZER W , RICHARD LAU
IPC: B21K21/00
CPC classification number: B21K21/00 , Y10T29/49799 , Y10T428/12264 , Y10T428/12285
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公开(公告)号：US1331921A
公开(公告)日：1920-02-24
申请号：US21223118
申请日：1918-01-17
Applicant: MUELLER METALS COMPANY
Inventor： HEIBY CARL G , JOHN BURKAM , LINDQUIST DAVID E , RIGGIN FRED L , ALLEN EBENEZER W , RICHARD LAU
IPC: B21K21/00
CPC classification number: B21K21/00 , Y10T428/12243 , Y10T428/12361 , Y10T428/12396
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公开(公告)号：US1393121A
公开(公告)日：1921-10-11
申请号：US21222618
申请日：1918-01-17
Applicant: MUELLER METALS COMPANY
Inventor： HEIBY CARL G , JOHN BURKAM , LINDQUIST DAVID E , RIGGIN FRED L , ALLEN EBENEZER W , RICHARD LAU
IPC: B21K21/00
CPC classification number: B21K21/00 , Y10T29/49799 , Y10T428/12264 , Y10T428/12285
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公开(公告)号：US1331922A
公开(公告)日：1920-02-24
申请号：US21223218
申请日：1918-01-17
Applicant: MUELLER METALS COMPANY
Inventor： HEIBY CARL G , JOHN BURKAM , LINDQUIST DAVID E , RIGGIN FRED L , ALLEN EBENEZER W , RICHARD LAU
IPC: B21K21/00
CPC classification number: B21K21/00 , Y10T428/12243 , Y10T428/12389 , Y10T428/12451
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公开(公告)号：US1331919A
公开(公告)日：1920-02-24
申请号：US21222318
申请日：1918-01-17
Applicant: MUELLER METALS COMPANY
Inventor： HEIBY CARL G , JOHN BURKAM , LINDQUIST DAVID E , ALLEN EBENEZER W , RIGGIN FRED L , RICHARD LAU
IPC: B22D7/08
CPC classification number: B22D7/08
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