To understand the meaning of ``production'' of goods for commerce as
used in the Act it is necessary to refer to the definition in section
3(j) of the term ``produced.'' A detailed discussion of the application
of the term as defined is contained in part 776 of this chapter, dealing
with the general coverage of the Act. Section 3(j) provides that
``produced'' as used in the Act ``means produced, manufactured, mined,
handled, or in any other manner worked on in any State; and for the
purposes of this Act an employee shall be deemed to have been engaged in
the production of goods if such employee
was employed in producing, manufacturing, mining, handling,
transporting, or in any other manner working on such goods, or in any
closely related process or occupation directly essential to the
production thereof, in any State.'' (For the definition of ``State'' see
Sec. 784.15.)