Heavy wall drill pipe

Details Heavy wall drill pipe Heavy wall drill pipe

1984-04-20

1988-09-27

Lucas, Susan J.

Machines not elsewhere specified

Agricultural or construction machinery

Drilling, mining, or soil treatment

Patent

active

D02978474

REFERENCES:
patent: 910891 (1909-01-01), Atwood
patent: 2770873 (1956-11-01), Ramsey
patent: 3193918 (1965-07-01), Heldenbrand
patent: 3458922 (1969-08-01), Schellstede et al.
patent: 3458922 (1969-08-01), Schellstede et al.
patent: 3754609 (1973-08-01), Garrett
patent: 3773359 (1973-11-01), Chance et al.
patent: 3784238 (1974-01-01), Chance et al.
patent: 4011918 (1977-03-01), Jurgens
patent: 4211440 (1980-07-01), Bergstrom
patent: 4349050 (1982-09-01), Bergstrom et al.

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