CA252878A - Machine "longwall" a miner - Google Patents

Machine "longwall" a miner

Info

Publication number: CA252878A
Authority: CA; Canada
Prior art keywords: mining machine; longwall mining; longwall; machine; mining
Prior art date: 1925-08-18
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

CA252878A

Other languages

English (en)

Inventor

O'toole Edward

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Individual

Original Assignee

Individual

Publication date

1925-08-18

1925-08-18 Application granted granted Critical

1925-08-18 Publication of CA252878A publication Critical patent/CA252878A/fr

Status Expired legal-status Critical Current

Links

238000005065 mining Methods 0.000 title 1

CA252878A Machine "longwall" a miner Expired CA252878A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA252878T

Publications (1)

Publication Number	Publication Date
CA252878A true CA252878A (fr)	1925-08-18

Family

ID=35161428

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA252878A Expired CA252878A (fr)			Machine "longwall" a miner

Country Status (1)

Country	Link
CA (1)	CA252878A (fr)

0
- CA CA252878A patent/CA252878A/fr not_active Expired

Similar Documents

Publication	Publication Date	Title
CA252878A (fr)	1925-08-18	Machine "longwall" a miner
CA247836A (fr)	1925-03-17	Machine a miner
CA247838A (fr)	1925-03-17	Machine a miner
CA254464A (fr)	1925-10-06	Machine a miner
CA248755A (fr)	1925-04-21	Meche de machine a miner
CA257827A (fr)	1926-02-02	Machine a miner le charbon
CA258607A (fr)	1926-03-02	Machine a miner le charbon
CA258127A (fr)	1926-02-16	Machine a miner
CA262864A (fr)	1926-07-27	Machine a miner
CA242200A (fr)	1924-08-19	Machine a miner
CA269283A (fr)	1927-03-22	Machine a miner
CA273906A (fr)	1927-09-13	Machine a miner
CA250505A (fr)	1925-06-09	Meche a miner
CA249724A (fr)	1925-05-19	Machine a percer des tunnels
CA247027A (fr)	1925-02-24	Methode de minage de la houille
AU2026624A (en)	1925-07-09	Improvements in coal mining machines
CA279346A (fr)	1928-04-10	Machine a miner
CA252879A (fr)	1925-08-18	Machine a miner
CA232772A (fr)	1923-07-17	Machine a miner
CA247837A (fr)	1925-03-17	Machine a miner
CA240686A (fr)	1924-06-10	Meche a miner
CA248679A (fr)	1925-04-14	Perceuse
CA250861A (fr)	1925-06-23	Machine a forer
CA255445A (fr)	1925-11-17	Perforatrice
CA289524A (fr)	1929-05-07	Machine a miner