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(en)
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1897-09-28 |
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Pipe-wrench |
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(en)
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1919-07-22 |
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Walter b |
US626401A
(en)
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1899-06-06 |
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Pipe-wrench |
US379123A
(en)
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1888-03-06 |
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Pipe-wrench |
US608202A
(en)
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1898-08-02 |
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Pipe-wrench |
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1899-12-26 |
1900-05-01 |
Justin Parmelee |
Pipe-wrench.
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1901-11-18 |
1902-05-27 |
Acme Sucker Rod Company |
Pipe-wrench.
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1903-06-27 |
1903-12-22 |
Robert C Jones |
Pipe and tubing tongs.
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1904-06-10 |
1905-06-06 |
Will M Pitzer |
Wrench.
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1905-05-04 |
1905-12-12 |
George Foggan |
Pipe-wrench.
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1905-09-21 |
1907-11-19 |
Parmelee Wrench Company |
Pipe-wrench.
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1907-11-14 |
1908-02-04 |
August Benard Heimann |
Pipe-wrench.
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1908-01-20 |
1909-04-06 |
Thomas Hughes |
Ratchet casing-tongs or pipe-wrench.
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1908-10-26 |
1910-05-17 |
William L Dunn |
Combination casing-wrench.
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1910-10-29 |
1911-10-03 |
William Louis Bessolo |
Pipe-wrench.
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1913-05-01 |
1913-09-02 |
Charles L Dunham |
Pipe-wrench.
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1913-06-24 |
1914-04-14 |
Robinson L Stringfellow |
Pipe-wrench.
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1914-04-08 |
1915-02-16 |
Beaumont Iron Works Co |
Pipe-wrench.
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1915-01-09 |
1915-11-23 |
Terence F Mckenna |
Pipe-wrench.
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1915-08-09 |
1916-04-04 |
Hardin L Hardeman |
Pipe-wrench.
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1919-08-18 |
1920-03-16 |
Walter R Langford |
Wrench
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1920-08-02 |
1921-06-07 |
Lucey Mfg Corp |
Well-casing wrench
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1920-09-04 |
1922-01-03 |
James O Cromwell |
Wrench
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1920-10-05 |
1923-05-01 |
Buford J Steen |
Pipe wrench
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1921-02-16 |
1923-01-30 |
Dunn Mfg Company |
Tongs
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1921-09-06 |
1925-07-07 |
Hughes Tool Co |
Pipe wrench
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1921-12-27 |
1926-07-20 |
Wilson Elihu Clement |
Tongs
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1922-04-11 |
1924-02-12 |
Hughes Tool Co |
Pipe wrench
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1922-12-12 |
1929-06-25 |
Byron Jackson Pump Company |
Oil-well tongs or wrench
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1923-08-13 |
1925-08-04 |
William L Bessolo |
Wrench
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1924-02-12 |
1925-10-06 |
Nelson K Smith |
Pipe wrench
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1924-03-18 |
1926-05-18 |
Homer A Jones |
Flexible wrench
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1924-08-22 |
1926-12-21 |
Bessolo William Louis |
Tongs
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1927-11-11 |
1930-06-10 |
Cox Luther |
Pipe wrench
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1934-08-25 |
1937-07-27 |
William W Wilson |
Oil well tool
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1935-11-25 |
1936-07-14 |
Byron Jackson Co |
Pipe tong
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1939-01-31 |
1944-01-25 |
Boynton Alexander |
Non-pipe-mashing wrench
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1939-03-04 |
1940-08-06 |
Caswell C Matlock |
Pipe tongs
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1943-09-14 |
Boynton Alexander |
Wrench
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1939-05-16 |
1942-04-07 |
Byron Jackson Co |
Pipe tong
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1943-02-09 |
Byron Jackson Co |
Pipe tong
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1944-09-18 |
1949-03-29 |
Osborne Smuel |
Flexible ratchet-type pipe wrench
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1944-09-28 |
1947-07-01 |
Oscar V Jones |
Pivoted jaw latch-grip pipe tongs
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1948-01-02 |
1951-06-19 |
Black Sivalls & Bryson Inc |
Tool for applying repair plates to pipe lines
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Web Wilson Oil Tools Inc |
Pipe tong die
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1951-06-19 |
Cole Delbert |
Pipe wrench
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Somerset Machine & Tool Co Inc |
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1957-07-18 |
1961-01-10 |
Arthur E Martois |
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1961-09-28 |
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Pipe tongs
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1974-09-03 |
Bucyrus Erie Co |
Breakout wrench
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1974-09-25 |
1976-07-20 |
Bernard Roseby |
Adjustable pipe wrench
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1977-07-13 |
1980-03-25 |
Cooper Industries, Inc. |
Drill pipe handling mechanism
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1989-03-21 |
1990-01-16 |
Chung Hsing Chang |
Adjustable spanner
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1989-08-17 |
1991-02-05 |
Franks Casing Crew And Rental Tools, Inc. |
Friction grip for tubular goods
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1992-03-10 |
Engel Douglas A |
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1993-08-03 |
Straightline Manufacturing, Inc. |
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1992-06-05 |
1993-07-27 |
Oscar Kindling |
Quick adjust wrench
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Ratcheting open end wrench
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Friction clutch wrench
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Reedrill Corporation |
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