$118,000. Average Physical Therapist salaries for job postings in San Francisco Bay Area, CA are 33% higher than average Physical Therapist salaries for job postings nationwide.118,000. Average Physical Therapist salaries for job postings in San Francisco Bay Area, CA are 33% higher than average Physical Therapist salaries for job postings nationwide.
It was over 1500 years later in 1790, that the first workable sewing machine was invented and patented by the British inventor Thomas Saint. Earlier, in 1755, Karl Weisenthal, a German inventor, devised the first sewing machine needle, but did not produce a complete machine.
The first record in the Patent-office Reports of the invention of sewing-machines is under the date of February, 1842. This parent was granted for making what is termed the shoemaker's switch in leather..The material to be sewed was placed in clamps, provided with feeding apparatus.he first record in the Patent-office Reports of the invention of sewing-machines is under the date of February, 1842. This parent was granted for making what is termed the shoemaker's switch in leather..