Question

20 multiple choice 4 points in what year was the trocar patented? 1748 1878 1888 1958 21 multiple choice 4 points which of the following individuals had a patent on a \life signal\? andrew van bibber almond d. fisk scipio baker albert fearnaught

Explanation:

Researching historical patents on medical - related inventions shows that the trocar was patented in 1878. There is no common knowledge of the individuals listed having a patent on a "life signal".

Answer:

1. C. 1878
2. No correct option provided as none of the named individuals are known for a "life signal" patent.