ELECTRIC POST-HOLE DIGGERJOSEPH J. SNYDERHARRY E. SECRISTUS3429386 * 1967年2月27日 1969年2月25日 Secrist Harry E Electric post-hole diggerUS3429386 1967年2月27日 1969年2月25日 Secrist Harry E Electric post-hole digger
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another possibility could be to invest in developing new technologies that turn waste into new, useful products. In recent years, there has been a rise of startups in the US and around
Additionally, it is noteworthy to highlight that analogous investigations conducted in similar on-site contexts have yielded a consistent thermal plateau spanning a depth of 7 m within deeper boreholes [54]. The soil below 7 m in this borehole has a relatively constant temperature; the ...
The hole in the centre of the flange plate may be truncated. The plates are reinforced with steel stirrups. USE/ADVANTAGES - No oxidization problems with concrete plate, simple construction, easy installation, reduced erection costs. 展开 ...
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Complete Patent Searching Database and Patent Data Analytics Services.doi:US3429386 ASecrist, Harry ESnyder, Joseph JUSUS3429386 * 1967年2月27日 1969年2月25日 Secrist Harry E Electric post-hole diggerUS3429386 1967年2月27日 1969年2月25日 Secrist Harry E Electric post-hole digger...
Post hole digging attachment for portable electric drillsdoi:US3023630 AHein, Simon JHein, Martin BUS
The arrangement uses a slotted hole in a post with a slotted bush which slides into the hole in the post. The post (1) is formed from metal 'T'-section with holes (5) in the web (2). A slot (4) in the web (2) allows the wire to be pushed laterally into the hole (5) in...