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 terms 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. 783.15.)