Cov txheej txheem:

Leej twg tsim cov ntaub pua plag sweeper?
Leej twg tsim cov ntaub pua plag sweeper?
Anonim

American Melville Bissell tau tsim cov ntaub pua plag sweeper xyoo 1876, thiab tsis ntev lawv tau mus rau hauv New Zealand tsev.

Cov ntaub pua plag tau ua thaum twg?

In 1876, Melville R. Bissell thiab nws tus poj niam, Anna, muaj lub khw me me hauv Michigan. Vim tias lawv niaj hnub tu cov sawdust tawm ntawm cov ntaub pua plag ntawm lub khw (paub qhov kev xav?), Melville tau tsim cov ntaub pua plag tshwj xeeb thiab patented.

Daniel Hess yog leej twg?

Daniel Hess yog tus kws sau ntawv / ua yeeb yaj kiabyug thiab loj hlob hauv B altimore, Maryland. Tom qab poob nws tus phooj ywg zoo tshaj plaws rau Cystic Fibrosis thaum nws muaj 10 xyoo, Daniel pib nws thawj qhov kev sau ntawv thiab paj huam. Thaum nws loj hlob tuaj thiab raws li nws tus phooj ywg zoo hauv tsev kawm ntawv theem siab, Daniel nrhiav kev ua yeeb yaj kiab hauv tsev kawm qib siab.

Vim li cas Daniel Hess tsim cov ntaub pua plag sweeper?

Cov ntaub pua plag nyuaj dua los ntxuav dua li cov plag tsev liab qab thiab tib neeg sim tsim cov txheej txheem yooj yim rau lawv ntxuav. Thawj tus rau siv lub tshuab nqus tsev ua ib txoj hauv kev los ntxuav cov ntaub pua plag yog Daniel Hess ntawm West Union, Iowa. Thaum Lub Xya Hli 1860, nws tau txais tus lej patent 29, 077, rau ib qho kev tsim nws hu ua "cov ntaub pua plag sweeper ".

Leej twg tsim lub tshuab nqus tsev Bissell?

In 1876, Melville R. Bissell thiab nws tus poj niam, Anna, tab tom khiav lub khw me me hauv Grand Rapids, Michigan. Mob tsis tu ncua tu sawdust tawm ntawm lub khw cov ntaub pua plag, Melville tau tsim thiab patented ib lub tshuab ntxhua khaub ncaws.

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