Fees shall be charged and collected by the commission pursuant to its rules and regulations for the following:

(a) Certificates of purchase or duplicates thereof,

(b) Patents and certified copies of records thereof,

(c) For certifying a contested case to superior court,

(d) For certifying copies of papers,

(e) Such other fees as are allowed by law.

(Amended by Stats. 1968, Ch. 981.)